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Finding the Third Proportional to 692.75 and 901

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Solution

The third proportional to 692.75 and 901 is: 1,171.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.75 : 901 = 901 : x
  2. Step 2: Convert to fraction form
    692.75/901 = 901/x
  3. Step 3: Cross multiply
    692.75x = 901 × 901
  4. Step 4: Simplify right side
    692.75x = 811,801
  5. Step 5: Solve for x
    x = 811,801/692.75
  6. Step 6: Final answer
    x = 1,171.85

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.